Tommy breaks his plans to go the Big Ball Game with Grandpa, so Grandpa decides to take Dil instead. Upon seeing how well Dil and Grandpa are getting along, Tommy worries that he is being replaced as favourite grandson.

The rats are up in the Finster attic searching for Halloween costumes when they discover a carving of a heart and the initials “T.P. + K.P.” in the heart. Everyone immediately questions Tommy who claims he doesn’t know anything about the heart.

Tommy and Rachel break up because Rachel’s family is moving away. Surprisingly, Tommy feels okay. His friends, however, are convinced that Tommy is in denial and they go over board trying to help Tommy cope with his grief.

Fed up with the annoyance that cell phones cause at school, Kimi decides to start a petition to ban cell phones. Angelica, an avid cell phone lover, decides to start her own counter petition, but no one will sign it because no one likes Angelica.

Sick of her family acting like zombies, Didi decides to get rid of all the TVs in their house. Tommy and Dil are distraught over this; as are their friends when their parents also decide to get rid of their televisions.

Dil has gotten a hold of a one of kind, reportedly real alien autopsy tape. He and the gang can't wait to watch it, but their plans are impinged upon when both Grandpa Lou and Grandpa Boris decide to baby-sit them.